i bought a bottle of the squirt application stuff Direct from America like Kersal. For 2016 season.It certainly didnt stop me catching swarms, i probably had a good year too, its good stuff. but its also very strong. i would advise no more than one to two good squirts , not even in the front of the door, more on the sides of the trap, or whatever kind of box you use. Once they have found it, its whats inside that sounds.
Their marketing is excellent and one bottle did last more than a season. Ive stopped catching AMM now and dont trap swarms, except whats around my apiaries, in an attempt to catch to catch any of my own swarms, last year i caught about 50% of wild AMM. Others were from my existing stock.
Comparing it to Lemon grass oil, well i kinda feel the effect is about the same. i saw no noticeable difference in activity in either traps.
Like Danni says, the best thing is old dark clean comb, if its clean you want get wax moth either, or very little.
worth a purchase if you have nothing else.